'X' is a safety device used in electrical circuits which prevents damage to electrical equipments. Identify 'X':

Electromagnet

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Fuse

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Electric cell

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Tubelight

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Solution

The correct option is B Fuse
The primary use of an electric fuse is to protect electrical equipment from excessive currents. When an excessive amount of current flows through the fuse wire, the heating effect of current causes the fuse wire to melt. This breaks the circuit and hence, avoids large currents through the equipment.

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